Tools Required

J 39400-A Halogen Leak Detector

1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging .
2. Remove the left sheet metal diagonal brace. Refer to Front End Sheet Metal Diagonal Brace Replacement in Body Front End.
3. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement in Engine Controls - 3.1L or Air Cleaner Assembly Replacement in Engine Controls - 3.8L.



4. Loosen the A/C refrigerant filter flare nuts.

Important: Immediately cap or tape the open front evaporator tube and the condenser in order to prevent contamination.

5. Remove the A/C refrigerant filter from the evaporator tube.
6. Discard the O-ring.

1. Remove the cap or the tape from the evaporator tubes.



2. Lubricate and install new O-ring to each end of the evaporator tube. Refer to O-Ring Replacement .

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

Important: Fully seat the A/C filter to the ferrules in order to ensure that the O-ring seat inside the filter housing.

3. Install the A/C refrigerant filter to the evaporator tube with the arrow pointing toward the evaporator.

Tighten
Tighten the A/C refrigerant filter flare nuts to 15 N·m (11 lb ft).

4. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement in Engine Controls - 3.1L or Air Cleaner Assembly Replacement in Engine Controls - 3.8L.
5. Install the left sheet metal diagonal brace. Refer to Front End Sheet Metal Diagonal Brace Replacement in Body Front End.
6. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging .
7. Leak test the fittings of the component using J 39400-A .